Replace smoke and CO detector batteries when clocks fall back
State officials urge residents to replace smoke alarm and carbon monoxide detector batteries when daylight saving time ends to help prevent home fire deaths.
State officials are reminding Pennsylvania residents to replace smoke alarm and carbon monoxide detector batteries this weekend when daylight saving time ends, pointing to the state’s troubling distinction as the nation’s leader in home fire deaths.
Pennsylvania reported 153 home fire fatalities in 2025, the highest number in the country, according to U.S. Fire Administration data.